mcmurray



(No Model.) f

' J. MOMURRAY.

LOOM FOB, WEAVING WIRE.

Patented Nov. l 13 n m f l (No Model.) 4 sheets-sheet 2.

l 4J. MUMURRAY. LOOM PoR-WEAVING WIRE. No. 288,468. .Patented Nov. 13,1883.

eww.'

(No Model.) 4 Sheets- Sheet 3.

J. MGMURR-AY, V LOOM FORWBAVING WIRE.

Patented Nov.. 13, 1883 4 Sheets-Sheet 4.

, No Model.)

8 J. MOMURRAY.

LOOM FOR WEAVING WIRE.

No. 288,468. PatentedNov. 13, 1888.

N4 PETERS. Fhnnrulhugnpmr, wnminmn. u. C.

loom.

into a-worm, B3, on an upright shaft, B, thelower end the shaft `Btisprovided with a bevelgear wheel, B5, which engages with a Erice.

PATENT JOHN MOMURRAY, OF BROOKLYN, NEW YORK.

` LOOM FORWE'AVING WIRE.

SPECIFICATION forming part of Letters Patent No. 288,468, dated November13, 1883,

` Application filcdJuly 5, 1881. (No model.) I

Improvements in Looms for Weaving Wire,

`of which the following is a specification.

My improvements are especially designed for use in looms for weavingwire-cloth, and willbe here described as employed in such a Some of themwill, however, be found useful in other looms.

' My invention. consists in various novel fea.- tures of constructionand combinations of parts, hereinafter described, and set forth in theclaims.

Inthe accompanying` drawings, Figure l. is afront view of a loomembodying my improve ments, the` operators platform and certain partsbeing removed. Fig. 2 is a side view of the same, cert-ain parts of theloom being broken away to more clearly illustrate `my invention. Fig. 3is a `plan thereof. Fig. 4 is a horizontal section, on a larger scale,of a portion of the shuttle-operating mechanism. Fig. 5 is alongitudinal vertical sectionof the same portion of said mechanism. Fig.6 is a transverse section ofthe same portionof said mechanism, taken outhe plane of `the dotted line x ai, Fig. 4, the pins II5 being inelevation.

Fig. 7 is a sectional plan of the shuttle.` Fig. Sis a longitudinalsection of the shuttle. Fig. 9is a side view of a part `of the let-offmechanism, and Fig. 10 is a sectional plan of the same part of thelet-off mechanism.

Similar letters of reference .designate corresponding parts in all thegures.

Theframe of the loom consists,essentially, of

side pieces, A, and stretchers or cross-pieces A. I will begin with adescription of the warp- -beam and the let-off mechanism.'

B designates the warp-beam. It is mounted `in bearings in the rearportion `of the side "with anumber of flanges, B', for separatingcertain portions of the warp-Wires from. other portions, and therebylessening their liability to become deranged orentangled. One end isfurnished with a Worm-wheel,B2,which` gears At bevelgear wheel, B, on ahorizontallyarranged shaft, Bl, mounted in bearings in the side pieces,A, of the frame A A. To the shaft BT arerigidly aflixed two wheels, B8,(see particularly Figs. 2, 9, and 10,) and loosely mounted on said shaftare levers B9, which are made inthe form of frames embrac. ing` the saidwheels within them..-

B10 designates blocks, which respectively embrace a portion of theperiplieryand rims of the wheels BB, and are connected by chains B11 tothe upper ends of the levers B. Pivoted to these blocks Blo are leversB12, having at their inner ends arc-shaped faces eccentric to theirpivots, and bearing against the peripheries of the Wheels B8. When theouter lends of these levers are raised., their inner ends, inconjunction with the blocks B10, clamp the` rims of the wheels BS, so`that they will serve to impart motion thereto when properly operated.The outer ends of these levers -B12 are connected by rods B13 with theupper ends of the leversB, hence when the upper ends of these levers Bfare movedbackward, they serve, through the rods B13, to effect therelease 4of the wheels B8, and when said ends of the levers B9 are movedforward, they effect the clampingrof the levers B12 and blocks B10 onthewheels, and then on afurther movement they effect the movement of thesaid wheels B8.

The lower ends of the levers BF are connect ed by rods B14 with thetreadles C, whereby the heddles C and C are operated. The wheels B8 aretherefore moved forward each time the treadles to which they arerespectively connected are depressed, and are released and allowed toremain stationary each time the treadles rise. In this waythe treadlesserve to control the let-off of the warp-wires.

The rods Bu are connected to the levers B9 by blocks, which are adaptedto be slid, through the agency of screws B15, longitudinally along thelower ends of the said levers, (see particularly Figs. 2, 9, and 10,)hence their points of connection with the said levers may be varied, soas to impart more or less motion to the levers and a greater or lesslet-off ofthe warpwires. In order that the let-off of the warpwires maybe decreased for any purpose-as, for instance, to tighten thewarp-wires--I connect one ofthe blocks B10 bya chain, B1,

IOC

-2 essaies with an arm extending from a rock-shaft, B, which is providedwith another arm thatis connected by a rod, B12, with a lever, B19,extending to the front of the loom, where it may be reached by theoperator.

D designates a platform where the operator stands, and from which he canreach the lever Bw. In lieu of this platform, the loom may be sunken, sothat the floor of the room in which it is located will occupy the samerelative position to it as this platform. By depressing the forward endof the lever and engaging it with a catch, B20, on the frame A A', thesaid block B1 may be raised, so that it and its lever B12 cannot clampthe corresponding wheel, B8, whereupon the let-off mechanism willoperate more slowly, and any slack that has occurred may be taken up. Bythus varying the speed of the let-off from time to time, I change thedistance from the breastbeam at which the reed of the lay E beats up,and as the lay travels through an are I thus vary the point at which itsdents operate on the filling in beating up. This is advantageous, as thereed will then last longer than if its dents operated always at the samepoint.

The heddles C' and C2 are connected at their upper ends by straps, whichpass over and are suspended from pulleys C2, and at their lower endsthey are each connected to one of two levers, G4 C5, which are fulcrumedto the side pieces, A, of the frame A A', and are connected by rods CGC7 to the treadles C. The treadles C are operated by cams C8 C, each camserving to depress one treadle and raise the other, owing to theconnection of the two hed.

dles by the aforesaid straps.

At their forward ends the treadles C have affixed to them upright rodsC, which extend up through the operators platform D. By depressingeither of these rods with his foot, the operator can, when starting thework, actuate the treadles, and through them lso adjust the heddles asto open the shed and keep it open as long as necessary for any purpose.The operator by pressing with his foot on either of the rods C canoperate the treadle connected with the rod quicker than it would beoperated by the cam CS or C". Just as either cam is about to act on itstreadle, the operator can by the proper rod C11 depress that treadlequickly and release it to permit it to be moved by the cam, and therebyhe obtains an additional movement of the treadle.

rlhe lay E is supported by swords mounted von a shaft, E', supported inbearings a in the side pieces, A, of the frame A A', and vibrates backand forth in performing its work. The mechanism by which it is operatedwill be described hereinafter. It is provided with a shuttle-race, E2,as usual, which is open on the front of the lay, the swords of which arecut away, as shown in Fig. 2, to allow of the passage of the shuttle.

I will now proceed with detailed description of the shuttle and itsoperating mechanism, as they come next in order of operation.

-mainder of its stroke or pick.

-G designates the shuttle. It consists of a frame, G, having bifurcateend pieces, G', each provided with a transverse tongue or bar, G2. G3designates the bobbin, which is made in the form of a spool,iittedloosely on a stationy This shuttle travels along the race E2 of thev layE to and from shuttle boxes or supports H, affixed to and extendinglaterally from the sidepieces,A,oftheframe-AA'. Intheseshuttle boxes orsupports H are shuttle-carriers H', which slide lengthwise thereof, andeach of which in turn impels the shuttle to the center ofthe race E2 ofthe lay E and delivers it to the other, whereby it is then carried there- These shuttlecarriers H' derive motion from levers or picker-staffsH2, which have bifurcate upper ends that embrace cross-pins b, withwhich the said shuttle-carriers are provided near their outer ends. Thepicker-staffs H2 are fulcrumed to lateral extensions A2 from the sidepieces, A, ofthe frame A A',- and they have the requisite motionimparted to them by cams H3 on a shaft, H, acting on bowls on theirlower ends.

The shuttle-carriers H consist, essentially, of cases H',containingpairs of pincher-like levers H4, which at their forward or inner endslie within and are sheathed by the cases H', and are provided with hooksfor grasping the -tongues or bars G2 of the shuttle G, but at their rearends protrude through the sides of the cases H'. Near their rear endsthese levers have inclined faces, to enable them to be operated upon byvertically-moving studs or pins H5, presently to be described, and theyare at the said ends held apart by springs H6 when not otherwiseactuated, so that their forward ends will then be -impelled toward eachother. The two pincher-like levers H4 of each pair are both adapted toswing on a common fulcrum for taking and releasing the shuttle. Y

The end pieces, G', of the shuttle are adapted to enter openings in theends of the cases H' of the shuttle-carriers, so that the hooks of thepincher-like levers H4 may engage with their tongues or bars G2.Supposing one of vthe end pieces, G,of the shuttle to be thus engagedwith one of the shuttle-carriers H', the shuttle is then carried to thecenter ofthe race E2 of the lay E when the latter arrives at the properposition, and the other shuttle-carrier H' comes forward to receive it.The studs or pins H5 belonging to the shuttle-carrier which has thus farcarried the shuttle are operated IOO IIO

` side piece, A, of the frame A A.

so that they will obtrude themselves in position to `open the forwardends of the pincherlike levers H4 of that shuttle-carrierwhen the saidshuttle-carrier arrives at the end of its stroke, hence the shuttle isreleased from that shuttle-carrier. It is simultaneously delivered tothe other shuttle-carrier, and the hooks on the forward ends of thepincher-like levers of the latter then engage with the tongue orbar Gr21o4 riers H are at the outer end of their strokes,

maybe turned down to grasp the `protruding rear ends of the pincher-likelevers H4, and

cause their forward en ds to release t-he shuttle. Springs HS, appliedto the upper ends of these levers H7, hold the lower ends of the saidlevers' out of engagement with the said pincher-liker levers Ht, exceptwhen `they are desired to operate. Vhen this occurs, it is onlynecessary to pull cords H1', which are fastened to the upper ends of thesaid levers H1, to accomplish the aforesaid result. f

The studs or pins H5 form extensions of that are fulcruined to the frontportion of the The levers H11 are operated at proper times by cams H12,

`arranged on the shaft C10.

The lay E has rigidly connected with it lefrom the shaft E, and which attheir rear ends bear upon cams E4 on the shaft H11, and at their forwardends carry a weight, E, which is shown as made in the form of a roller,and

.can be attached to the said arms at different' distances from thefulcrum of the lay-swords. The levers E are supported or held instirrups s, which are iiXed upon the shaft E', as seen clearly in Fig.1.

The lower ends of Ithe lay-swords are eX- tended below the shaft E andare rearwardly bent, and they are `provided at their lower ends andbelow the shaft E with bowls,which bear against cams E on the shaft HU.

The lay is swung backward by the action of the cams E on its swords, andat the end of its backward stroke is released by these cams. It is thenstarted on its beat or forward stroke by the action ofthe cams E1 on thelevers E3 5 but as soon as it is carried sufficiently far forward thesecams release it, and thereupon the weight E carries it forward to thecompletion of its stroke and `makes its reed beat up the weft-wire lastlaid in the shed by the shuttle with a powerful blow. This is animportant feature of the loom, especially for weaving wire-cloth.

It will be seen that inasmuch as the lay is at certain times freed fromthe cams which opcrate it, I can stop the loom and work the lay by handfor any purpose-as, for instance, when a wire breaks.

I have before described how the distance from the breast-beam at whichthe lay beats up may be varied by operating the lever B1, and it is"evident that this could not be done if the la'y were operated bymechanism which caused it to beat up at an invariable distance from thebreast-beam. Vhen the lay moves forward to beat up by the influence ofgravity, it will continue to move until t-he dents of its reed beat thelast weft-wire up to the clothmaki'ng point, at whatever position thatmay In weaving wire-cloth it is more difficult to beat up properly thanin weaving textile fabrics, because it requires much more power to beatthe weft-wire up to its proper position, or to force it up between thewarp-wires. The beating up can never be done effectively by pressing orforcing theV lay forward, and I have found that it must be performed bya blow. Another advantage of beating up by a blow is that the lay willrebound after first striking and strike a second time on the weft-Aactuated by cams J 1 on a shaft, J "1.

The shaft H, as here shown, constitutes the driving-shaft of themachine, and may have motion transmitted to it through the agency of agear-wheel, K, with which it is provided. Motion is imparted by thisshaft to the shafts 01 and J5 by gear-wheels L, suitably proportioned toeach other to attain the desired relative movements of the parts whichare operated fromsaid shafts. y

M designates a shipper-bar for adjusting a belt or clutch, to controlthe driving of the loom from a counter-shaft or other source of power.`

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination, with a warp-beam and an upright shaft, and mechanismfor transmitting motion to the warp-beam from said shaft, of the wheelsB B11, the horizontal shaft BT, the wheels BS, the blocks B10, embracingthe rims of said wheels B, the levers B12, pivoted in said blocks, andhaving their inner ends bearing against the wheels BS, and means foractuating said blocks and said levers, substantially as specified.

2. The combination, with a warp-beam, a gear-wheel, B2, an uprightshaft, B4, and a worm, B3, of the wheels B B15, the horizontal lshaftBl, the wheels BB, the blocks B1, em-

bracing the rims of the wheels BS, the levers B12, pivoted in saidblocks, and having their in- ,ner ends bearing on said wheels B8, andmeans IOO rio

4 Y asados for actuating said blocks and levers, substantially asspecified.

3. The combination, with a warp-beam, an upright shaft, and mechanismfor transmitting motion to the warp-beam from said shaft, of the wheelsB5 B1,'the horizontal shaft B1, the wheels B1, the blocks B111,embracing the rims of said wheels B1, the levers B11, pivoted in saidblocks, and having their inner ends bearing upon said wheels B5, thelevers B11, loosely mounted on the shaft B1, the rods B15, and means forimparting motion to the levers B1', substantially as specified.

4:. The combination, with a warpbeam and an upright shaft, and mechanismfor transmitting motion to thewarp-beam from said shaft,

of the wheels B5 B11, the horizontal shaft B1, the wheels B8, the blocksB1, the levers B11, the levers B1, the rods B15, the treadles C, and therods B11, connecting` the levers B1 with said treadles, substantially asspecified.

5. The combination, with a warp-beam, an upright shaft, and mechanismfor transmitting motion to the warp-beam from said shaft, of the wheelsB5 B11. the horizontal shaft B1, the wheels B1, the blocks B10, thelevers B11, the levers B1, the rods B11, the rods B11, the treadles C,the blocks connecting the rods B11 with the levers B11, and the screwsB11, substantially as specified.

6. The combination, with a warp-beam, an upright shaft, and mechanismfor imparting motion to the warp-beam from said shaft, of the wheels B5B1, the horizontal shaft B1, the wheels B11, the blocks B10, the leversB11, the levers B1, the chains B11, the rods B11, means for actuatingthe levers B11, the chain B111, the rock-shaft B11 and its arms, the rodB15, and the lever B111, substantially as specified.

7. The combination, with a warp-beam, an upright shaft,and mechanism fortransmitting motion to the warp-beam from said shaft, of the wheels B5B, the horizontal shaft B1, the wheels B5, the blocks B111, the leversB11, the levers B1, the chains B11, the rods B11, means for actuating`the levers B11, the chain B11, the rock-shaft B11 and its arms, the rodB111, the lever B15, and the catch B111, substantially as specified.

8. The combination, with a warp-beam, an upright shaft,and mechanism fortransmitting motion to the warp-beam from said shaft, of the wheels B5B11, the horizontal shaft B1, the wheels B5, the blocks B111, the leversB11, the levers B11, the chains B11, the rods B111, the rods B11, thetreadles C, the rods C11, and the operators platform D, substantially asspecified.

9. The combination, with the lay E, having the race E1, of the shuttleG, with its end pieces, G', and tongues or bars G1, the pincherlikelevers H1, mounted on a common fulcrum, and both adapted to be swung totake and release the shuttle, the shuttle-carriers H', inclosing saidlevers, and mechanism for operating said shuttle-carriers and saidlevers, substantially as specified.

10. The combination, with the lay E, having the race E1, of the shuttleG, with its end pieces, G', and tongues or bars G1, the shuttlecarriersH', the pincher-like levers H1, inclosed by said carriers, and having attheir rear ends inclines which project through the carriers, the springsH5, the studs or pins H5, between which the carriers pass, and which areadapted to act on the inclines of said levers H1 to open them, andmechanism for actuating said shuttlecarriersand said studs or pins,substantially as specified.

ll. The combination, vwith the lay E, having the race E1, of the shuttleG, with the end pieces, G', and tongues or bars G1, the shuttlecarriersH', the pincher-like levers H1, inclosed in said carriers, and providedat their rear ends with inclines projecting through the carriers, thesprings H11, the picker-staffs H1, the cams H1, the studs or pins H5,between which the shuttle-carriers pass, and the rods H10, levers H11,and cams H11,for raising said studs or pins into a position to act uponthe levers H1, substantially as specified.

12. The combination of the shuttle-carriers H', and mechanism foroperating them, with the pincher-like levers H1, the springs H5, and thelevers H1, substantially as specified.

13. The combination, with the lay-shaft E' and thelay E, fulcrumed onand extending upward from said shaft, ofthe levers E3, extending forwardand rearward from said lay-shaft, the shaft H11 and means for rotatingit, the cams E1, for acting on the rear portions of said levers forstarting the lay forward, and the weight E5,applied to the forward endsof said levers for completing the forward movement of the lay, wherebythe reed is made to strike with a blow upon the weft-wire, and provisionis afforded for varying the distance from the breast-beam at which thelay bea-ts up, substantially as specified.

14C. rlhe combination, with the lay-shaft E' and the lay E,fulcrumed onand extending upward from said shaft, of the levers E11, extendingforward and rearward from said lay-shaft, the shaft H11 and means forrotating it, the cams E1, for acting on the rear portions of saidlevers, to start the lay forward, and the weight E5, applied to, theforward ends of said levers for completing the forward movement of thelay, whereby the lay is made to strike with a blow upon the weft-wire,and provision is afforded for varying the distance from the breast-beamat which the lay beats up, and the cams E6, for acting on the IOC) IIO

lay-swords below the fulcrum-shaft f',to move the lay back after beatingup, substantially as specified.

JOHN MCMURRAY. Witnesses:

T. J. KEANE, JAs. B. BOWEN.

